pcu_filter = Filter(PCU.fields, {'pcu_id': pcu_filter})
elif isinstance(pcu_filter, dict):
pcu_filter = Filter(PCU.fields, pcu_filter)
pcu_filter = Filter(PCU.fields, {'pcu_id': pcu_filter})
elif isinstance(pcu_filter, dict):
pcu_filter = Filter(PCU.fields, pcu_filter)